On the basis of the relation between the causes of formation of China SN seismic belt and Qinghai-Tibet-Indonesia dai-tectonic belt, we put forward the viewpoint of East Asia SN seismic belt, and think it is composed of Mongolia, West China, Burma and the Sumatra area of Indonesia.

Seismotectonic interpretation along central section of Chinese North-South seismic belt from ETM image;

Using finite element method, the timespace evolution of stress field on North-south Seismic Belt and adjacent region is simulated,considering the geological structures and designing the model with viscosity characteristic.

In order to estimate quantitatively long-term seismic hazard in segmentation of the North-South seismic belt, we introduced the time-and magnitude-predictable model into the present study.

Study on the relation of regional deformation anomaly characteristics and earthquakes along South-North seismic belt;

Earthquake triggering by static stress:the 5 major earthquakes with M≥7 (1561～1920) in the northern section of South-north seismic zone,China;

In this paper we have analyzed the data of mobile geodetic deformation across faults along northern section of North South seismic belt and its both sides, and studied the activity level, dynamic evolution and relation to strong earthquakes of every fault zone.

Using data of mobile gravity measurement,variation features of gravity field in south area of northern segment of the North south seismic belt is analysed.